edited by A.G.L.Shaw, C.M.H. Clark
Melbourne University Press , 1967
Buku Referensi
International Biographical Centre, 1995
Buku Referensi
Charles Scribner's Sons, 1964
Buku Teks
Thomas, Joseph, author
Philadelphia : J.B. Lippincott, 1915
Buku Referensi
Mcinnes, Graham
Toronto The Macmillan Co of Canada Limited 1950
Buku Teks